Question: Who became the head of state of North Korea on 9/9/1948?
Paraphrase: What leader took over rule in North Korea on 9/9/1948?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q423 p:P35 ?s . ?s ps:P35 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1948')) }